Window sash construction



June 13, 1 939. FE 2,161,996

WINDOW SASH CONSTRUCTION Filed July 15, 1936 2 Sheets-Sheet l 12%;gzvlzmozz. I M/KWWV ATTORNEYS,

June 13, 1939. EL F. CHAFFEE WINDOW SASH CONSTRUCTION Filed July 15,1936 2 Sheets-Sheet 2 O I I 4 u g VIII/'4 I 5% V filib] TOR.

ATTORNEYS Patented June 13, 1939 UNITED STATES PATENT orncr.

2,161,998 WINDOW SASH CONSTRUCTION Application July 15, 1936, Serial No.90,737

SOlaims.

This invention relates to window sash constructions for vehicles, suchas railway cars, and has for its object a mounting for the sash by whichthe sash is frictionally moimted in the window frame and capable ofedgewise shifting within limits to relieve the glass pane of the forceof jerks and shocks and strains occurring when the vehicle or car ismore or less suddenly stopped or started.

19 It further has for its object a window construction for vehicles, asrailway cars, which are streamlined and the window sashes are so mountedthat their outer faces are nearly flush with the outer surface of thecar body.

[I It further has for its object a simple and compact means forfrictionally holding the sash in the window frame in such a manner thatit is capable of edgewise shifting movement within limits.

9 Other objects will appear throughout the speciiication.

The invention consists in the novel features and in the combinations andconstructionsv hereinafter set forth and claimed.

a In describing this invention, reference is had to the accompanyingdrawings in which like characters designate corresponding parts in allthe views.

a Figure 1 is a fragmentary elevation of a windowv structure embodyi sthis invention.

Figure 2 is a fragmentary sectional view on line 2-2, Figure 1.

Figure 3 is a sectional view on line 3-4. Figure 1.

Figure 4 is a fragmentary detail view of a single sash constructionembodying this invention.

In streamline trains, which are air conditioned, the window sashes arestationary. Heretofore,

' it hasbeencustomarytoattachthesashinthe window opening or window framewith screws from the outside. These screws present a more or lessimsatisfactory appearance and require numerous holes in the frame and inthe sash.

One of the principal features of this invention is a compact means forholding the sash, either single or double, in position, which holdingmeans is concealed and not exposed on the outside of the car and locatedfor'the most part beyond the edges of the sash. Further where the sashesare attached rigidly to the car body posts or frames any strains set upby sudden impact (such as contact with bumping posts or in coupling thecars together) are transmitted direct to the sashes with consequentdamage to glass and sash frames, hence it is desirable to have the sashstructure held yielding in the opening.

i designates generally the frame which may be an integral part of the'car body structure or a separate frame, it beingusually an integral 5part of the car structure around or confining the window opening. Theframe or the car body is usually formed of sheet metal and also formedso as to provide a channel C aroimd the window opening with the openside of the channel presentedtoward the window opening.- It is in thischannel that the sash frame or frames extend.

2 designates the outer sheet metal plate of the window frame;' 3 asecond plate annular in cross section with a flange 4 lying against theinner face of the plate 2 and with a flange i spaced apart from theplate2 and forming a surface for the interior trim of the car. These platesare usually an integral part of the car bodystructure. I m

6 is a sill mounted on the intermediate part of the plate 3 and formingthe side of the channel opposed to the outer side formed by the plate 2and flange l.

In Figures 1, 2 and 3, a double sash is'shown. u The double sashconstruction has all features of the single sash construction shown inFigure 4 particularly, in so far as the clamping strip for holding oneof the double sashes or the single sash in the channel of the frame isconcerned.

One of the principal features of the invention is the means by which theglass pane is yieldingly mounted and also frictionally mounted in thewindow frame, so as to shift within limits in an edgewise direction.Each sash, as here shown, includes a glass pane and the mounting.

therefor, which is a sash frame slidably or frictionaily mounted in thewindow opening or window frame with a portion or flange on one sidethereof frictionally engaging one side wall of a channel formed in theframe, where it is frictionally held by clamping meansfi The channel inthe frame extends entlrelyaround the sash and is of such depth that thesash frame is capable of shifting edge wise in any directionunder theinfluence of Jerks or shocks, so-that the glass pane is relieved to alarge extent of the force of the shocks and jerks.

In Figures 1, 2 and 3, the sash construction includes outer and innersashes designated generally ii and i2, each including a metal sash frameusually of extruded metal and designated respectively l3 and I. Theextruded frame members may be of any suitable cross section, and, ashere shown, the outer side of the outer sash frame it s presses againstthe plates 2 and I of the window frame, the sash frame being formed witha circumferential flange II which thrusts against the outer wall of thechannel C. The flange I of the window frame member 8 terminates at'itsedge short of the inner edge of the plate 2 leaving a rabbet, and thesash frame I! is formed with a log it seated in the rabbet. The glasspane of the sashsea'ts in a U-shaped sealing strip II of yieldingmaterial, as rubber, located in a channel in the sash frame it, theinner side of the channel being removable and being in the form of aglazing strip II, one margin of which seats in a groove it formed inthesash frame It.

The means for frictionally holding the sash frame it in position is oneor more clamping strips 2i extending lengthwise of the rails and stilesof the sash and located in the channel C, this strip being fulcrumed atone edge at 22 on the bottom of the channel C, that is, on theintermediate part of the plate 2, and having its opposite margin orflange 2i pressing toward the inner face of the sash frame II, thisstrip being clamped in position by screws 28 extending through theintermediate part of the strip between the fulcrumed edge 22 and theflange 24 and threading into the bottom of the channel; Preferably,ashere shown, this strip is Z shaped in general form in cross section withthe edge of one arm of the 2 formation fulcrumingat 22 and the otherarm, as 2|, pressingflatwise againstthe sash frame it, and the screws 2|extend through the intermediate part of. the 2 formation.

Theinner sash II is of similar construction but is provided with amarginal flange 28 corresponding to the flange ll coacting with orengaging the edge of the sill 8 provided at one side of the channel Cand with the glazing strip 21 corresponding to the glazing strip I.located on the side of the sash frame I toward the sash frame it. 'Theflange 24 of the securing strip therefore is interposed between the sashframes and preferably a strip 20 of compressible and absorbent materialis folded over the flange in order to be interposed between the sashes.so that the fold is exposedxin the space between the sashes. This.serves to absorb moisture from between the sashes to prevent cloudingand frosting, when other dehydration means is not employed.

The inner sash, isflrmiysecuredin theohannel Cby being clamped to theouter sash by means of screws ll extending through the corner port ionsof the sash frames, the screws extending through an opening in the innersash and threading into the outer sash, as seen in Figure 3. In order topermit the ready removal of the inner sash. these screws are studs, andthe opening 23 in the inner sash frame i4 is large enough topermittheheadofthestud topasstherethrough. A locking means in the formof a pivoted latch 8| isprovided movable into a position between thehead of the stud and the inner sash frame it.

In Figure 4 is illustrated a single saslfconstruc tion, wherein theclamping strip 4i corresponding to thestrip 2|, although 2 shaped ingeneral form is of slightly different contour from that shown'inl'igurelinthattheintermediatepartofthe 2 formation is considerablywider with respect to the flange 42, corresponding to the flange 2.Also, this strip extends into a recess in the sill,andthesillmustberemovedinordertogiveaccess to the clamping screws ll,corresponding to the screws 2|.

Inthe form shown in Figure 4. the strip,-in-

- of the channel in the window frame and between the base of the flangewhich presses against the outer side of the channel C and the continuousedge of the wall of the car body forming the window opening, thoseclearances permitting the sash to shift edgewise when frictionallyclamped in position to relieve the sash of the glass pane of suddenshocks tending to break the glass pane.

In either embodiment of the invention, the sash frame is held inposition by a strip fulcrumed at one edge having its margin remote fromthe fulcrum pressing against the sash and a is held in position or movedabout .its fulcrum to clamp it against the sash frame by a screw passingthrough the intermediate part of the strip and threading into the windowframe. Also, this clamping strip in either embodiment of the inventionis located or concealed in a channel located at the edges of the sashframe.

What I claim is:

1. In combination with a window frame formed with a channel, of a windowsash mounted in the channel with one side face against one side ofthechannel, and means located in the channel coacting and pressing againstthe other side face for clamping the sash in the frame, said the sash,and a screw extending through the strip against its fulcrumed edge andsaid margin and threading into the bottom of the channel.

2. The combination with a window frame, of a window structure comprisinga double sash, one sash being mounted with one side face against theframe, and means coacting and pressing against the other side face forclamping the same in the frame. said means comprising a stripsubstantially z-shaped in cross vsection with one of the arms of the Zpressing against the other side face of the sash and the edge of theother armof the Z fulcruming on a portion of the frame, and clampingmeans extending through the intermediate part of the Z strip andcoacting. with the adjacent portion ,of the frame and tending to tiltthe strip about whereby said arm of the 2 strip is interposed betweenthe sashes, and means for securing the second sash in the frame.

3. The combination with a window frame, of a window structure comprisinga double sash, one sash being mounted with one side face against theframe, and means coacting and pressing against the other side face forclamping the same in the frame, said means comprising a stripsubstantially Z shaped in cross section with one of the arms of the Zpressing against the other side face of the sash and theedgeoftheotherarmofthezfulcrumingon 40 margin remote from the'fulcrumpressing against v a portion of the frame, and clamping means extendingthrough the intermediate part of the Z strip and coacting with theadjacent portion of the frame and tending to tilt the strip about itsfulcrumed edge and clamp the strip against the sash, the second sashbeing mounted in the first sash in position, whereby said arm of the Zstrip is interposed between the sashes, and means for securing thesecond sash to the first sash and clamping the same against theinterposed strip.

4. The combination with a window frame formed with a channel facing thewindow opening, of a window sash extending in the channel and mountedwith one side face against one side wall of the channel, means coactingwith and pressing against the other side face of the sash for clampingthe sash in the frame, said means including a strip located in thechannel and extending lengthwise along the stiles and rails of the sash,and means for securing the strip in the channel, a second sash mountedin the frame with one side face thrusting against the said strip, andmeans connecting the sashes for clamping the second sash toward thefirst sash and against the strip, and a sealing strip of compressible,moisture absorbent material interposed between the sashes and the stripand having a portion exposed in the space between the sashes.

ment with the window frame in a direction cross-- wise of the edgewisemovement, said means pressing on one side of the sash frame to press theother side into frictional engagement with one side of the channel ofthe window frame, including a strip located in the channel and extendinglengthwise along the stiles and rails of the sash, means for securingthe strip in the channel, a second sash mounted in the frame with oneside face thrusting against said strip, and means connecting the sashesfor clamping the second sash toward the first sash against the strip,all whereby both sashes are capable of sliding edgewise, as a unit,under shocks and are braked in their sliding movement by the frictionalengagement of the first sash with one wall of the channel and frictionalengagement of the other sash with said strip by reason of it beingclamped to the first sash.

EDWARD F. CHAFFEE.

